.........is used in optical mediaa) Magnetic tapeb)Laser raysc)Inkd) N – InterviewSolution

1.	.........is used in optical mediaa) Magnetic tapeb)Laser raysc)Inkd) None
Answer» Optical MEDIA reads or writes the DATA with the help of Laser rays. These rays are passed across the reflective MATERIAL of optical media which in turn changes the reflectivity periodically that will be taken as the BINARY input by the media.

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